Lifting-tackle



n. BROUILLABD.

LIFTING TACKLE. APPLICATION FILED JUNE 2, 1920.

1,377,870. I Patented May10, 1921.'

. All

' T: 1' SiAtnS EWMTEE Patna LIFTING-TACKLE.

Specification of Letters Patent.

Patented May to, rear.

Application filed June 2, 1920. Serial No. 388,055.

boxes, bales and the like which, ordinarily,

are not provided with any means whereby they may be conveniently lifted.

The objects of my invention are to provide a device of the abovedescribed character which is adapted to be readily applied to an objectto be lifted, of almost any shape and size, within reasonable limits,and which will securely grasp the same, so that there will be little orno danger of disengagement, and which is of simple and durableconstruction.

I accomplish these object by the means shown in the accompanyingdrawings in which:

Figure 1 is a side elevation showing the application of a device,embodying my invention, to an ordinary barrel.

Fig. 2 is a perspective view showing the device in position for use.

Figs. 3, l and 5 are detail views of one of the holding dogs.

According to my invention 1 provide a pair of angular shaped levers ordogs, of identical construction, each being preferably formed of stiffrod iron and bent, by forging, or other means, to provide a U- shapedhandle or arm portion comprising a pair of arms a, a and a transverseconnecting bar a and a similarly shaped, articleengaging, arm-portion,comprising a pair of arms a a having transversely extending end portionsa a, which are disposed in alinement and meet midway between said arms.The handle portion a, a, a is disposed in a plane approximately at rightangles to the plane of the arms o and the intermediate connectingportions of the respective arms are bent to form coils or eyes a a whichlie within the angular space between said arms, so that thecorresponding arms are tangentially disposed to the intermediate coilsforming a rounded c orner between them.

A chain 7) is provided, the links of which are of a size to permit thesame to run freely through the coils a a said chain being passedsuccessively through the coils of one of the dogs and then through thecoils of the other, so that the chain may be passed about the object tobe embraced, and the dogs may be held in operative position at oppositesides thereof. A hook 0 is connected to one end of the chain, the hookand links of the chain being relatively formed so that the hook may beengaged in any one of the links. A ring (Z, of larger diameter thantheinternal diameter of the coils a a is connected to the opposite end ofthe chain from the hook, and ring 6, of similar size,

is also connected between two links of the chain at a short distancefrom the hook. The ring d thus prevents the withdrawal of the chain fromthe dog nearest thereto and the ring 6 prevents the withdrawal of thehook-end of the chain from the other dog beyond a certain point, so thata section of chain, of convenient length, is provided, to the end ofwhich the hook is attached, which cannot be drawn back through theadjacent dog.

lin attaching the device to any object such, for example, as a barrel,the chain is passed about the barrel and, by pulling on its ends, isdrawn as tight as conveniently possible, and then the hook is engaged inthe most con venient link, so that the chain is held in this position.Before the chain is made fast, the dogs are positioned thereon so thattheir handles a, a, a extend horizontally from the barrel and the arms wa extend above the handles and lie flat against the barrel. The dogs arealso slid along on the chain, so that they are located thereon atapproximately opposite points with relation to the barrel.

As thus arranged, when the handles, or bars a are pulled up, the upwardpull on the chain will. cause the end portions a a, of the arms (6 a tobe swung inward and pressed against the sides of the barrel so that saidend portions will act as iulcrums when lifting action is applied to thehandles, and said dogs will be caused to act as levers of the 2d classon the chain, pulling it outward at the points engaged, as indicated inFig. 5. The chain will thus be drawn tightly about the barrel and firmlyengaged therewith, the force of this engagement depending on the weightto be overcome, as, the greater the weight, the greater will be thetension of the chain.

The pressure of thearm end portions a a against the sides of the objectlifted, will also be increased in proportion to the weight supported,providing a strong frictional engagement With the barrel, in addition tothe engagement of the chain.

If the device is to be principally used for lifting cylindrical objects,the end portions a a will preferably, be formed on a correspondingcurve, as indicated in Fig. 4;, to provide an increased bearing surface,as compared with the surface which would be provided if they were madestraight, but such variations have no essential effect on the efficiencyof the device.

By providing means so that the chain will always be retained in thecoils a and a separation of the parts will be prevented and, by locatingthe ring a at a distance from the end to which the hook is attached, itwill be impossible to draw the hook so closely to the dog as'to make itinconvenient to attach the hook to one of the chain links after thechain has been drawn tight about the object to be lifted.

The above described device may be quickly and conveniently applied'to anobject of almost any size and shape, within reasonable limits, by thesimple operation of passing the chain around it and attaching its endportions, there being no particular limitation to the length of chainwhich may be employed, or to the number of dogs which may beemployedthereon.

I claim 1. A lifting device for barrels and like objects, comprising apair of angularly shaped levers each having a transverse aperturethroughout substantially its entire length, intermediate its ends and acontinuous chain adapted to be drawn freely through said apertures andabout the object, permitting disposition of the levers thereon atopposite points, said chain having means at one end adapted to beengaged with the links thereof at any point between the levers, and saidlevers being adapted to be fulcrumed at corresponding ends againstopposite sides of the object in position to draw outwardly on the chain,at the points engaged, as the opposite ends of the levers are lifted.

2. A lifting device for barrels, and like objects, comprising a pair ofdogs eachcomposed of a stiff metal bar formed to provide a pair ofoppositely disposed, U-shaped arms, arranged at anangle to each other,and an intermediate coil at each side, and a flexible binder which ispassed successively through said coils, permitting said dogs to be slidto different positions on said binder, and means to permit attachment ofthe end portions of the'binder at different points.

In testimony whereof, I have signed my name to this specification.

DON AT BROUILLARD.

It is hereby certified that in Letters Patent No. 1,377,870, granted May10, 1921, upon the application of Donat Brouillard, of Haverhill,Massachusetts, for

an improvement in Lifting-Tackle, an error appears in the printedspecification requiring correction as follows: Page 2, lines 41-42,claim 1, strike out the words and comma throughout substantially itsentire length, and insert the same to follow the Word apertures in line44; and that the said Letters Patent should be read with this correctiontherein that the same may conform to the record of the case in thePatent Oflice.

Signed and sealed this 14th day of June, A. ll, 1921.

WM. A. KINNAN,

Acting Commissioner of Patents.

[SEAL]

